The Bak-Sneppen Model on Scale-Free Networks

Details The Bak-Sneppen Model on Scale-Free Networks The Bak-Sneppen Model on Scale-Free Networks

2001-08-29

arxiv.org/abs/cond-mat/0108494v2

Europhys. Lett., 57 (5), 765 (2002)

Physics

Condensed Matter

Statistical Mechanics

5 pages and 3 eps figures. Final version appeared in Europhys. Lett

Scientific paper

10.1209/epl/i2002-00529-8

We investigate by numerical simulations and analytical calculations the Bak-Sneppen model for biological evolution in scale-free networks. By using large scale numerical simulations, we study the avalanche size distribution and the activity time behavior at nodes with different connectivities. We argue the absence of a critical barrier and its associated critical behavior for infinite size systems. These findings are supported by a single site mean-field analytic treatment of the model.

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